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Finding the Fourth Proportional to 211,777.03, 317,704.52 and 69,630.33

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Solution

The fourth proportional to 211,777.03, 317,704.52 and 69,630.33 is: 104,458.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,777.03 : 317,704.52 = 69,630.33 : x
  2. Step 2: Convert to fraction form
    211,777.03/317,704.52 = 69,630.33/x
  3. Step 3: Cross multiply
    211,777.03x = 317,704.52 × 69,630.33
  4. Step 4: Simplify right side
    211,777.03x = 22,121,870,570.09
  5. Step 5: Solve for x
    x = 22,121,870,570.09/211,777.03
  6. Step 6: Final answer
    x = 104,458.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.